president obama said now is the time to give scientists of all ages a shout out. >> obama: as a culture, we're great consumers of technology but we're not always properly respecting the people who are in the labs and, you know behind the scenes creating the stuff that we now take for granted. >> michael: the guy didn't even break a sweat. the white house is backing up that talk with the launch of a new ameri-corps program to promote science education. and earth day is the last day the state department will receive public comments on the proposed keystone xl pipeline. there's been a trove of misinformation about what the pipeline actually delivers, so get out a piece of paper and jot down these handy facts from "think progress" as you prepare your comments . . . make your voice heard by sending an email to the state department at keystone comments@state.gov. we also put a link to the state department's keystone page on our website, so email now or forever hold your peace. and don't worry if we were being too serious about earth day, because our own brett ehrlich isn't. just cam down, bre